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When should I use nil and NULL in Objective-C?
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edited Jan 27 '16 at 14:15
community wiki
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multiprocessing: How do I share a dict among multiple processes?
... multiprocessing import Process, Manager
def f(d):
d[1] += '1'
d['2'] += 2
if __name__ == '__main__':
manager = Manager()
d = manager.dict()
d[1] = '1'
d['2'] = 2
p1 = Process(target=f, args=(d,))
p2 = Process(target=f, args=(d,))
p1.start()
p2.start()
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Lazy Method for Reading Big File in Python?
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12 Answers
12
Active
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CMFCTabCtrl的使用、颜色样式调整 - C/C++ - 清泛网 - 专注C/C++及内核技术
...l，并给其添加4个CEdit:
CRect rectTab;
CEdit m_wnd1;
CEdit m_wnd2;
CEdit m_wnd3;
CEdit m_wnd4;
CMFCTabCtrl m_wndTab;
m_wndTabLoc.GetWindowRect (&rectTab);
ScreenToClient (&rectTab);
m_wndTab.Create (CMFCTabCtrl::STYLE_3D, rectTab, this, 1,
CMFCTabCtrl::LOCATION_TOP);
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Should all Python classes extend object?
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In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
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>>> type(Foo())
<type 'instance'>
vs.
>...
SQL DELETE with INNER JOIN
There are 2 tables, spawnlist and npc , and I need to delete data from spawnlsit .
npc_templateid = n.idTemplate is the only thing that "connect" the tables.
I have tried this script but it doesn't work.
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Can grep show only words that match search pattern?
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Dan MidwoodDan Midwood
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10
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Find an element in a list of tuples
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240
If you just want the first number to match you can do it like this:
[item for item in a if it...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
... O(N), but since the numbers grow at an exponential rate it is actually O(N2) due to the complexity of multiplying the large numbers. Below is a Python implementation. It takes about 0.5 seconds to calculate for N=50,000.
def max_chars(n):
dp = [0] * (n+1)
for i in xrange(n):
dp[i+1] = max(...
Convert tuple to list and back
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298
Convert tuple to list:
>>> t = ('my', 'name', 'is', 'mr', 'tuple')
>>> t
('...